糸魚川 いといがわ静岡 しずおか構造 こうぞう せんだったら
itoiga washizu okakō zōsendattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 糸魚川静岡構造線

1. If it were the Itoigawa-Shizuoka Tectonic Line; If it was the Itoigawa-Shizuoka Tectonic Line

Tara Conditional